International research undertaken by researchers from ICFO and CIC nanoGUNE, amongst other centres, has enabled compressing light into small devices and controlling their flow of electricity, thanks to the union of graphene (a layer of carbon atoms) and boron nitride (a good bidimensional insulator).

Henceforth, blind or visually impaired persons will be able to move in an independent manner and safely, thanks to a pioneering 3D sound-guided system, which is easy to use and is already available to users.